Date: Wed, 6 Nov 2013 09:28:18 -0600 From: Eric van Gyzen <eric@vangyzen.net> To: Matt Magoffin <matt@msqr.us> Cc: Konstantin Belousov <kostikbel@gmail.com>, freebsd-stable@freebsd.org Subject: Re: 9.2-RELEASE amd64 panic: vn_open_cred Message-ID: <527A6012.2050500@vangyzen.net> In-Reply-To: <D0BA9FE0-8CF2-4221-85A0-27EED6A48048@msqr.us> References: <DF88429C-058E-4756-AFC4-F97249FF54AA@msqr.us> <20131106022932.GY59496@kib.kiev.ua> <57A9579D-7BA6-4ED8-9EE0-D2B5949F8D26@msqr.us> <20131106035350.GC59496@kib.kiev.ua> <D0BA9FE0-8CF2-4221-85A0-27EED6A48048@msqr.us>
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On 11/06/2013 03:14, Matt Magoffin wrote: > On Nov 6, 2013, at 4:53 PM, Konstantin Belousov <kostikbel@gmail.com> wrote: > >>>> At least, look up the source line number for the VOP_ADD_WRITECOUNT_APV+0x78, >>>> by loading the kernel.debug into kgdb and doing >>>> list *VOP_ADD_WRITECOUNT_APV+0x78 >>>> The lines should be from the build-time generated file vnode_if.c, so please >>>> provide the excerpt from the source file around the reported line. >>> I am running a GENERIC amd64 kernel, which I have not compiled. Is there a way to deduce the appropriate line without a dump? Or, would I need to trigger a panic in another machine running the same kernel? >>> >> The system comes with kernel.symbols file, which should be enough. >> You do not need a core to do what I requested. > Is it possible to answer your question on a different machine, as I am not able to bring the system in question down for some time now. I am not clear on exactly how I can perform what you have requested. Just do: $ kgdb /boot/kernel/kernel (kgdb) list *VOP_ADD_WRITECOUNT_APV+0x78 You don't need to bring the system down. This will have no effect on the running system. It's just reading information from the kernel file and kernel.symbols file. Eric
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